FR2511779B1 - - Google Patents

Info

Publication number
FR2511779B1
FR2511779B1 FR8214292A FR8214292A FR2511779B1 FR 2511779 B1 FR2511779 B1 FR 2511779B1 FR 8214292 A FR8214292 A FR 8214292A FR 8214292 A FR8214292 A FR 8214292A FR 2511779 B1 FR2511779 B1 FR 2511779B1
Authority
FR
France
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR8214292A
Other languages
French (fr)
Other versions
FR2511779A1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Corp
Original Assignee
Olympus Optical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Publication of FR2511779A1 publication Critical patent/FR2511779A1/fr
Application granted granted Critical
Publication of FR2511779B1 publication Critical patent/FR2511779B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
    • G03B7/081—Analogue circuits
    • G03B7/083—Analogue circuits for control of exposure time
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
    • G03B7/099—Arrangement of photoelectric elements in or on the camera
    • G03B7/0993—Arrangement of photoelectric elements in or on the camera in the camera
    • G03B7/0997—Through the lens [TTL] measuring
    • G03B7/09971—Through the lens [TTL] measuring in mirror-reflex cameras
    • G03B7/09974—Through the lens [TTL] measuring in mirror-reflex cameras using the film or shutter as sensor light reflecting member

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)
  • Shutters For Cameras (AREA)
FR8214292A 1981-08-18 1982-08-18 Dispositif de photometrie de la reflexion pour appareil photographique reflex a un seul objectif Granted FR2511779A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1981122449U JPS5828827U (ja) 1981-08-18 1981-08-18 カメラの反射測光装置

Publications (2)

Publication Number Publication Date
FR2511779A1 FR2511779A1 (fr) 1983-02-25
FR2511779B1 true FR2511779B1 (enrdf_load_stackoverflow) 1985-05-24

Family

ID=14836115

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8214292A Granted FR2511779A1 (fr) 1981-08-18 1982-08-18 Dispositif de photometrie de la reflexion pour appareil photographique reflex a un seul objectif

Country Status (5)

Country Link
US (1) US4459007A (enrdf_load_stackoverflow)
JP (1) JPS5828827U (enrdf_load_stackoverflow)
DE (1) DE3230543C2 (enrdf_load_stackoverflow)
FR (1) FR2511779A1 (enrdf_load_stackoverflow)
GB (1) GB2104231B (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3321503A1 (de) * 1983-06-15 1984-12-20 Ernst Leitz Wetzlar Gmbh, 6330 Wetzlar Verfahren und schaltungsanordnungen zur verstaerkung eines eingangsstroms
JPS61273915A (ja) * 1985-05-30 1986-12-04 Toyoda Gosei Co Ltd インサートを有する成形品の成形方法
DE3923803A1 (de) * 1989-07-19 1991-01-31 Messwandler Bau Ag Faseroptische anordnung zum messen der staerke eines elektrischen stromes
JPH0688987A (ja) * 1992-07-21 1994-03-29 Nikon Corp 幕間漏光を防止したマルチパターン調光用遮光羽根

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2069449A5 (enrdf_load_stackoverflow) * 1969-11-15 1971-09-03 Minolta Camera Kk
US4064517A (en) * 1974-07-02 1977-12-20 Olympus Optical Co., Ltd. Photometric apparatus for single lens reflex camera
JPS5219525A (en) * 1975-08-06 1977-02-14 Minolta Camera Co Ltd Ttl light measure circuit for the camera
US4185456A (en) * 1976-07-02 1980-01-29 Cummings Donald Ray Providing energy from the combustion of methanol
JPS5495232A (en) * 1978-01-11 1979-07-27 Olympus Optical Co Ltd Camera
JPS55120015A (en) * 1979-03-09 1980-09-16 Olympus Optical Co Ltd Reflection photometric device for focal plane shutter
US4343541A (en) * 1979-09-17 1982-08-10 Olympus Optical Co., Ltd. Reflection photometric apparatus for camera including focal plane shutter
JPS5651726A (en) * 1979-10-03 1981-05-09 Olympus Optical Co Ltd Photometric system
JPS57157225A (en) * 1981-03-24 1982-09-28 Olympus Optical Co Ltd Control circuit for exposure of camera

Also Published As

Publication number Publication date
FR2511779A1 (fr) 1983-02-25
DE3230543C2 (de) 1985-05-30
JPS5828827U (ja) 1983-02-24
GB2104231A (en) 1983-03-02
US4459007A (en) 1984-07-10
DE3230543A1 (de) 1983-03-31
GB2104231B (en) 1985-05-01

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Legal Events

Date Code Title Description
ST Notification of lapse